MCD to generate power from garbage

Commercial Electric Tariffs explain utility rate structures, peak demand charges, kWh vs kW pricing, time-of-use periods, voltage, delivery, capacity ratchets, and riders, guiding facility managers in tariff analysis for accurate energy savings.

Key Points

Commercial electric tariffs define utility pricing for energy, demand, delivery, time-of-use periods, riders, and ratchet charges.

✅ Separate kWh charges from kW peak demand fees.

✅ Verify time-of-use windows and demand interval length.

✅ Review riders, capacity ratchets, and minimum demand clauses.

Especially during these tough economic times, as major changes to electric bills are debated in some states, facility executives who don’t understand how their power is priced have been disappointed when their energy projects failed to produce expected dollar savings. Here’s how not to be one of them.

Your electric rate is spelled out in a document called a “tariff” that can be downloaded from your utility’s web page. A tariff should clearly spell out the costs for each component that is part of your rate, reflecting cost allocation practices in your region. Don’t be surprised to learn that it contains a bunch of them. Unlike residential electric rates, commercial electric bills are not based solely on the quantity of kilowatt-hours (kWh) consumed in a billing period (in the United States, that’s a month). Instead, different rates may apply to how your power is supplied, how it is delivered via electricity delivery charges, when it was consumed, its voltage, how fast it was used (in kW), and other factors.

If a tariff’s lingo and word structure are too opaque, spend some time with a utility account rep to translate it. Many state utility commissions also have customer advocates that may assist as they explore new utility rate designs that affect customers. Alternatively, for a fee, facility managers can privately chat with an energy consultant.

Common mistakes

Many facility managers try to estimate savings based on an averaged electric rate, i.e., annual electric spend divided by annual kWh. However, in markets where electricity demand is flat, such a number may obscure the fastest rising cost component: monthly peak demand charges, measured in dollars per kW (or kilo-volt-amperes, kVA).

This charge is like a monthly speeding ticket, based solely on the highest speed you drove during that time. In some areas, peak demand charges now account for 30 to 60 percent of a facility’s annual electric spend. When projecting energy cost savings, failing to separately account for kW peak demand and kWh consumption may result in erroneous results, and a lot of questions from the C-suite.

How peak demand charges are calculated varies among utilities. Some base it on the highest average speed of use across one hour in a month, while others may use the highest average speed during a 15- or 30-minute period. Others may average several of the highest speeds within a defined time period (for example, 8 a.m. to 6 p.m. on weekdays). It is whatever your tariff says it is.

Because some power-consuming (or producing) devices, including those tied to smart home electricity networks, vary in their operation or abilities, they may save money on a few — but not all — of those rate components. If an equipment vendor calculates savings from its product by using an average electric rate, take pause. Tell the vendor to return after the proposal has been redone using tariff-based numbers.

When a vendor is the only person calculating potential savings from using a product, there’s also a built-in conflict of interest: The person profiting from an equipment sale should not also be the one calculating its expected financial return. Before signing any energy project contracts, it’s essential that someone independent of the deal reviews projected savings. That person (typically an energy or engineering consultant) should be quite familiar with your facility’s electric tariff, including any special provisions, riders, discounts, etc., that may pertain. When this doesn’t happen, savings often don’t occur as planned. 

For example, some utilities add another form of demand charge, based on the highest kW in a year. It has various names: capacity, contract demand, or the generic term “ratchet charge.” Some utilities also have a minimum ratchet charge which may be based on a percent of a facility’s annual kW peak. It ensures collection of sufficient utility revenue to cover the cost of installed transmission and distribution even when a customer significantly cuts its peak demand.

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Western Denmark Negative Electricity Prices stem from wind energy oversupply, grid congestion, and limited interconnector capacity via Nord Pool and TenneT, underscoring electrification needs, renewable integration, special regulation, and system flexibility.

Key Points

They are sub-zero power prices from wind oversupply, weak interconnectors, low demand, and balancing needs.

✅ Caused by high wind output, low demand, and export bottlenecks

✅ Limited Nord Pool interconnector capacity depresses prices

✅ Special regulation and district heating absorb excess power

A downturn in the cable connection to Norway and Sweden, together with low electricity consumption and high electricity production, has pushed down European electricity prices to a negative level in Western Denmark.

A sign that the electrification of society is urgently needed, says Soren Klinge, head of electricity market at Wind Denmark today.

The heavy winds during the first weekend of July, unlike periods when cheap wind power wanes in the UK, have not only had consequences for the Danes who had otherwise been looking forward to spending their first days at home in the garden or at the beach. It has also pushed down prices in the electricity market to a negative level, which especially the West Danish wind turbine owners have had to notice.

'The electricity market is currently affected by an unfortunate coincidence of various factors that have a negative impact on the electricity price: a reduced export capacity to the other Nordic countries, a low electricity consumption and a high electricity generation, reflecting broader concerns over dispatchable power shortages in Europe today. Unfortunately, the coincidence of these three factors means that the price base falls completely out of the market. This is another sign that the electrification of society is urgently needed, 'explains Soren Klinge, electricity market manager at Wind Denmark.

According to the European power exchange Nord Pool Spot, where UK peak power prices are also tracked, the cable connection to Sweden is expected to return to full capacity from 19 July. The connection between Jutland and Norway is only expected to return to full capacity in early September.

2000 MWh / hour in special regulation

During the windy weather on Monday morning, July 6, up to 2000 MWh / hour was activated at national level in the form of so-called special regulation. Special regulation is the designation that the German system operator TenneT switches off Danish electricity generation at cogeneration plants and wind turbines in order to help with the balancing of the German power system during such events. In addition, electric boilers at the cogeneration plants also contribute by using the electricity from the electricity grid and converting it to district heating for the benefit of Danish homes and businesses.

'The Danish wind turbines are probably the source of most of the special regulation, because there are very few cogeneration units to down-regulate electricity generation. Of course, it is positive to see that we have a high degree of flexibility in the wind-based power system at home. That being said, Denmark does not really get ahead with the green transition, even as its largest energy company plans to stop using coal by 2023, until we are able to raise electricity consumption based on renewable energy.

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Adani Electricity Mumbai Power Cuts follow non-payment rules, reflecting billing disputes, regulatory compliance, consumer impact, and affordability concerns, while prompting mitigation measures like flexible payment plans, assistance programs, and clearer communication for residents.

Key Points

AEML cutoffs for unpaid bills per rules, raising affordability worries, billing issues, and calls for flexible aid.

✅ Triggered by unpaid bills under regulatory guidelines

✅ Affordability and billing transparency concerns raised

✅ Mitigation: flexible plans, aid for low-income users

Adani Electricity Mumbai Limited (AEML) recently made headlines by cutting power supply to around 100 homes in Mumbai, sparking discussions about the reasons behind this action and its implications for consumers, especially as reports like the Northeast D.C. outage continue to surface.

Background of the Incident

The power supply disconnections by AEML were reportedly due to non-payment of electricity bills by the affected households. This action, although necessary under AEML's policies and in accordance with regulatory guidelines, has raised concerns about the impact on residents, particularly during challenging economic times when pandemic electricity shut-offs highlighted energy insecurity.

Reasons for Non-Payment

Non-payment of electricity bills can stem from various reasons, including financial hardships, disputes over billing accuracy, or unforeseen circumstances affecting household finances. In Mumbai, where the cost of living is high, utility bills constitute a significant portion of monthly expenses for many households, mirroring trends of rising electricity bills seen elsewhere.

Regulatory and Legal Framework

AEML's decision to disconnect power supply aligns with regulatory provisions governing utility services, which may include emergency disconnection moratoriums in other jurisdictions. Utility companies are mandated to enforce bill payments to maintain operational sustainability and ensure fair distribution of resources among consumers.

Consumer Impact and Response

The power disconnections have prompted reactions from affected residents and consumer advocacy groups, highlighting issues related to affordability, transparency in billing practices, and the need for supportive measures during times of economic distress amid heat-related electricity struggles that pressure vulnerable households.

Mitigation Measures

In response to such incidents, utility companies and regulatory authorities often implement mitigation measures. These may include flexible payment options, financial assistance programs for low-income households, and enhanced communication about billing procedures and payment deadlines, along with policy scrutiny such as utility spending oversight to curb unnecessary costs.

Future Considerations

As cities like Mumbai continue to grow and face challenges related to urbanization and infrastructure development, ensuring reliable and affordable access to essential services like electricity, including efforts to prevent summer power outages, remains a priority. Balancing the operational needs of utility providers with consumer welfare concerns requires ongoing dialogue and proactive measures from all stakeholders.

Conclusion

The power supply cuts by Adani Electricity in Mumbai underscore the complexities of managing utility services in urban centers. While necessary for financial viability and regulatory compliance, such actions also highlight broader issues of affordability and consumer protection. Moving forward, collaborative efforts between utility companies, regulatory authorities, and community stakeholders are essential in addressing these challenges and ensuring equitable access to essential services for all residents.

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Renewable Energy Economic Recovery drives GDP gains, job growth, and climate targets by accelerating clean energy investment, green hydrogen, and grid modernization, delivering high ROI and a resilient, low-carbon transition through stimulus and policy alignment.

Key Points

A strategy to boost GDP and jobs by accelerating clean power and green hydrogen while meeting climate goals.

✅ Adds $98tn to global GDP by 2050; $3-$8 return per $1 invested

✅ Quadruples clean energy jobs to 42m; improves health and welfare

✅ Cuts CO2 70% by 2050; enables net-zero via green hydrogen

Renewable energy could power an economic recovery from Covid-19 through a green recovery that spurs global GDP gains of almost $100tn (£80tn) between now and 2050, according to a report.

The International Renewable Energy Agency’s new IRENA report found that accelerating investment in renewable energy could generate huge economic benefits while helping to tackle the global climate emergency.

The agency’s director general, Francesco La Camera, said the global crisis ignited by the coronavirus outbreak exposed “the deep vulnerabilities of the current system” and urged governments to invest in renewable energy to kickstart economic growth and help meet climate targets.

The agency’s landmark report found that accelerating investment in renewable energy would help tackle the climate crisis and would in effect pay for itself.

Investing in renewable energy would deliver global GDP gains of $98tn above a business-as-usual scenario by 2050, as clean energy investment significantly outpaces fossil fuels, by returning between $3 and $8 on every dollar invested.

It would also quadruple the number of jobs in the sector to 42m over the next 30 years, and measurably improve global health and welfare scores, according to the report.

“Governments are facing a difficult task of bringing the health emergency under control while introducing major stimulus and recovery measures, as a US power coalition demands action,” La Camera said. “By accelerating renewables and making the energy transition an integral part of the wider recovery, governments can achieve multiple economic and social objectives in the pursuit of a resilient future that leaves nobody behind.”

The report also found that renewable energy could curb the rise in global temperatures by helping to reduce the energy industry’s carbon dioxide emissions by 70% by 2050 by replacing fossil fuels, with measures like a fossil fuel lockdown hastening the shift.

Renewables could play a greater role in cutting carbon emissions from heavy industry and transport to reach virtually zero emissions by 2050, particularly by investing in green hydrogen.

The clean-burning fuel, which can replace the fossil fuel gas in steel and cement making, could be made by using vast amounts of clean electricity to split water into hydrogen and oxygen elements.

Andrew Steer, chief executive of the World Resources Institute, said: “As the world looks to recover from the current health and economic crises, we face a choice: we can pursue a modern, clean, healthy energy system, or we can go back to the old, polluting ways of doing business. We must choose the former.”

The call for a green economic recovery from the coronavirus crisis comes after a warning from Dr Fatih Birol, head of the International Energy Agency, that government policies must be put in place to avoid an investment hiatus in the energy transition, even as the solar and wind industry faces Covid-19 disruptions.

“We should not allow today’s crisis to compromise the clean energy transition, even as wind power growth persists despite Covid-19,” he said. “We have an important window of opportunity.”

Ignacio Galán, the chairman and CEO of the Spanish renewables giant Iberdrola, which owns Scottish Power, said the company would continue to invest billions in renewable energy as well as electricity networks and batteries to help integrate clean energy in the electricity.

“A green recovery is essential as we emerge from the Covid-19 crisis. The world will benefit economically, environmentally and socially by focusing on clean energy,” he said. “Aligning economic stimulus and policy packages with climate goals is crucial for a long-term viable and healthy economy.”

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Summerside Wind Power reached 61% in May, blending renewable energy, municipal utility operations, and P.E.I. wind farms, driving city revenue, advancing green city goals, and laying groundwork for smart grid integration.

Key Points

Summerside Wind Power is the city utility's wind supply, 61% in May, generating revenue that supports local services.

✅ 61% of electricity in May from wind; annual target 45%.

✅ Mix of city-owned farm and West Cape Wind Farm contract.

✅ Revenues projected at $2.9M; funds municipal budget and services.

During the month of May, 61 per cent of the electricity Summerside's homes, businesses and industries used came from wind power sources.

25 per cent was purchased from the West Cape Wind Farm in West Point, P.E.I. — the city has had a contract with it since 2007. The other 36 per cent came from the city's own wind farm, which was built in 2009. 

"One of the strategic goals that was planned for by the city back in 2005 was to try to become a 100 per cent green city," said Greg Gaudet, Summerside's director of municipal services.

"The city started looking at ways it could adopt green practices into its operations on everything it owns and operates and provides services to the community."

Summerside Electric powers about 6,200 residential, 970 commercial and 30 industrial customers and also sells to NB Power, while Nova Scotia Power now generates 30 per cent of its electricity from renewables.

The Summerside Wind Farm is owned by the City of Summerside, which then sells the electricity to Summerside Electric, which it also owns, for profit. 

For the months of April and May, the wind farm generated $630,000 for the city. Last year, it was $507,000 over the same time frame, which does not include a 2 per cent rate increase imposed this year.

"We had a lot of good, strong days of wind for the month of May over other years. So normally we'd be on average somewhere in the range of the 45 per cent range for those months," said Gaudet. 

The city's annual target for wind generation is also 45 per cent, which aligns with the view that more energy sources make better projects. Gaudet said it balances out over the year, with winter being the best and production dropping as low as 25 per cent in the summer months.

At Summerside council's monthly meeting on Monday, May's 61 per cent figure was touted as one of the highest months on record.

"To have one at 61 per cent means we had great production from our wind facilities and contracts, though communities such as Portsmouth have raised turbine noise and flicker concerns in other contexts," Gaudet said.

The utility also owns and provides power through a diesel generation plant.

Municipal money maker
The municipality projects its wind energy production will generate $2.9 million for the city in its current fiscal year, which began April 1, paralleling job gains seen in Alberta's renewables surge this year.

"Any revenues that are received from the wind farm facility goes into the City of Summerside budget," Gaudet said. "Then the council decides on how that money is accrued and where it goes and what it supports in the community."

Wind power generated $2.89 million for the city in the 2019-2020 fiscal year. The budget originally projected $3.2 million in revenue, but blade damage sustained during post-tropical storm Dorian put two turbines out of commission for a few weeks.

Gaudet called this their "only bad year" and officials said they see this year's target to be a bit more conservative and achievable regardless of hiccups and uncontrollable forces, such as the wind they're harnessing.

"It's performed outstandingly well," said Gaudet of the operation.

"There's been no huge, major cost factors with the wind farm to date ... its production has been fairly consistent from year to year." 

Gaudet said the technology has already been piloted at a smaller operation at Credit Union Place, aligning with municipal solar power projects elsewhere.

The goal of the project is to bring Summerside's renewable portfolio up to a yearly average of 62 per cent. Gaudet said it's expected to be commissioned by May 2022 at the latest and after that, the city hopes to focus on smart grid technology.

"It's a long-term goal and I think it's the right [investment] to make," he said. "You have to be environmentally conscious and a steward of your community.

"I think Summerside is that and does that ... a model for North America to look at how a city can work a relationship with an electric utility for the betterment."

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AP1000 Refueling Outage Record showcases Westinghouse nuclear power excellence as Sanmen Unit 2 completes its first reactor refueling in 28.14 days, highlighting safety, reliability, outage optimization, and economic efficiency in China.

Key Points

It is the 28.14-day initial refueling at Sanmen Unit 2, a global benchmark achieved with Westinghouse AP1000 technology.

✅ 28.14-day first refueling at Sanmen Unit 2 sets global benchmark

✅ AP1000 design simplifies systems, improves safety and reliability

✅ Outage optimization by Westinghouse and CNNC accelerates schedules

Westinghouse Electric Company China operations today announced that Sanmen Unit 2, one of the world's first AP1000® nuclear power plants, has set a new refueling outage record in the global nuclear power industry, completing its initial outage in 28.14 days.

"Our innovative AP1000 technology allows for simplified systems and significantly reduces the amount of equipment, while improving the safety, reliability and economic efficiency of this nuclear power plant, reflecting global nuclear milestones reached recently," said Gavin Liu, president of the Westinghouse Asia Operating Plant Services Business. "We are delighted to see the first refueling outage for Sanmen Unit 2 was completed in less than 30 days. This is a great achievement for Sanmen Nuclear Power Company and further demonstrates the outstanding performance of AP1000 design."

All four units of the AP1000 nuclear power plants in China have completed their first refueling outages in the past 18 months, aligning with China's nuclear energy development momentum across the sector.  The duration of each subsequent outage has fallen significantly - from 46.66 days on the first outage to 28.14 days on Sanmen Unit 2.

"During the first AP1000 refueling outage at the Sanmen site in December 2019, a Westinghouse team of experts worked side-by-side with the Sanmen outage team to partner on outage optimization, and immediately set a new standard for a first-of-a-kind outage, while major refurbishments like the Bruce refurbishment moved forward elsewhere," said Miao Yamin, chairman of CNNC Sanmen Nuclear Power Company Limited. "Lessons learned were openly exchanged between our teams on each subsequent outage, which has built to this impressive achievement."

Westinghouse provided urgent technical support on critical issues during the outage, as international programs such as Barakah Unit 1 achieved key milestones, to help ensure that work was carried out on schedule with no impact to critical path.

In addition to the four AP1000 units in China, two units are under construction at the Vogtle expansion near Waynesboro, Georgia, USA.

Separately, in the United States, a new reactor startup underscored renewed momentum in nuclear generation this year.

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